Learn Kotlin Online: Free Course with AI Tutor & Certificate
Building modern apps requires a language that handles errors cleanly and runs efficiently. This free Kotlin programming tutorial solves that over 13 hours and 94 lessons. You'll master environment setup, object-oriented programming concepts, and null safety. By the end, you can build reliable mobile and web applications.
What you'll learn in this Kotlin course
Five concrete outcomes you'll walk away with, each mapped to modules in the curriculum below.
Understand the history and purpose of Kotlin programming language.
Set up the Kotlin environment and utilize IDEs effectively.
Master the usage of variables, data types, and operators in Kotlin.
Implement control flow, exception handling, and null safety in Kotlin.
Create and work with classes, objects, and object-oriented programming concepts in Kotlin.
Kotlin course syllabus
01 Introduction To Kotlin
- History of Kotlin
- What is Kotlin?
- What is Kotlin used for?
02 Kotlin - Environment Setup
- What is JDK?
- Download the JDK
- Download the Kotlin Complier
- Setup the Kotlin Complier for Command Line
- What is IDE?
- What is Intellij IDEA?
- Download and setup the Intellij IDEA
03 Kotlin Comments and Keywords
- Kotlin Block Comment
- Kotlin Line Comment
- Kotlin Nested Comments
- Kotlin Soft Keywords
- Kotlin Hard Keywords
- Kotlin Modifier Keywords
04 Kotlin - Variables
- What is Variables?
- Kotlin Mutable Variables
- Kotlin Read-Only Variables
- Kotlin Nullable Variables
- What is the difference between var and val?
05 Datatypes used in Kotlin
- What is Data Types?
- Kotlin Numeric Data Types
- Kotlin Character Data Types
- Kotlin String Data Types
- Kotlin Array Data Type
- Kotlin Boolean Data Type
- Conversion of Kotlin Data Types
06 Kotlin - Operators
- Arithmetic operator
- Relation operator
- Assignment operator
- Unary operator
- Logical operator
- Bitwise operator
07 Kotlin - Functions
- User-Defined Functions
- Kotlin Built-In Functions
- Unit-returning Functions
- Kotlin Recursive Function
- Kotlin Tail Recursion
- Kotlin Lambda Function
- Kotlin Inline Functions
08 Control Flow of Kotlin
- What is Control Flow in Kotlin?
- Flow Chart For Control Flow
- What is Expression in Kotlin?
- Kotlin if Expression
- Kotlin If and Else Expression
- Kotlin Nested if Expression
- Kotlin if-else-if Ladder Expression
- Kotlin When Expression
- What are Loops?
- Kotlin For Loop
- Kotlin While Loop
- Kotlin Do while Loop
- Kotlin Break Statement
- Kotlin Labeled Break Statement
- Kotlin Continue Statement
- Kotlin Labeled Continue Statement
09 Kotlin - Exception Handling and Null Safety
- What is Exception Handling in Kotlin
- Kotlin Try Catch
- Multiple Catch Block
- Nested Try Block
- Kotlin Finally Block
- Kotlin Throw Keyword
- What are Nullable and Non Nullable Types?
- Kotlin Smart Cast
- Unsafe and Safe Cast
- What is Kotlin Elvis Operator?
10 Kotlin - Classes and Object
- What is Kotlin Class?
- Kotlin Objects
- Kotlin Nested Class
- Kotlin Inner Class
- Anonymous Inner Class
- Kotlin Type Aliases
- What is Kotlin Abstract Class?
11 Kotlin - Constructor and Inheritance
- What is Constructor?
- Kotlin Primary Constructor
- Kotlin Secondary Constructor
- What is Inheritance?
- What are the Overriding Methods?
- Overriding Properties
- Overriding Rules
- Derived Class Initialization Order
- Access Super Class Members
12 Kotlin - Object Oriented Programming Language Concepts
- Interface
- Visibility Control
- Extension Funtion
- Data Classes
- Sealed Classes
- Generics
- Delegation
- Kotlin - Destructing Declarations
13 Kotlin - Ranges
- Integer Type Ranges
- Koltin Ranges and Double Dot Operators
- Kotlin Utility Functions
Real-world projects you'll work on
Practice the exact kind of work Kotlin professionals do on the job.
Kotlin Integration in Global Tech Solutions: Building a Kotlin-based Mobile App
Revolutionizing Data Management: Implementing Kotlin in a Big Data Analytics Platform
Enhancing User Experience: Developing a Kotlin-powered Web Application for Global E-commerce
Innovative Automation Solutions: Creating a Kotlin-based Tool for Streamlining Business Processes
Skills you'll gain
Add these to your LinkedIn profile and resume the day you finish.
Who should take this Kotlin course?
And exactly what you need before starting (spoiler: almost nothing).
This course is for
- Aspiring Android developers who want to build native mobile applications.
- Java programmers looking to upgrade their skills with a more concise language.
- Computer science students in India preparing for software engineering roles.
- Working IT professionals aiming to switch into mobile or backend development.
Prerequisites
- No prior programming experience is required to start this course.
- A basic understanding of how computers and software work is helpful.
- A working computer with an internet connection to install the required IDEs.
How learning works on LearnTube
The structure of a bootcamp, the price of free.
AI curates your path
Our AI picks the top 1% of video content for each topic and arranges it into a structured, goal-based curriculum. No more tutorial roulette.
Learn, then get quizzed
After every lesson, your AI tutor asks you a question and gives personalised feedback on your answer, so gaps get fixed immediately.
Finish with proof
Complete the course, build the capstone project, and claim a certificate recognised by 900+ hiring partners.
A complete Kotlin course: free, structured and job-focused
Writing clean, crash-proof code is a major challenge for developers. Older languages often require heavy boilerplate, leading to bugs and slower development times. This free Kotlin course helps you bypass those issues by teaching a modern, concise programming language. You will start with the History of Kotlin before moving into practical applications.
Across 13 modules, you'll explore everything from Kotlin - Environment Setup to Datatypes used in Kotlin. The curriculum covers essential logic structures like Control Flow of Kotlin, Kotlin - Functions, and Kotlin - Operators. As you progress, you will master advanced topics such as Kotlin - Exception Handling and Null Safety, Kotlin - Constructor and Inheritance, and Kotlin - Ranges. You will also apply your skills through hands-on projects. These include building a Kotlin-based mobile app, implementing Kotlin in a big data analytics platform, developing a web application for global e-commerce, and creating an automation tool for business processes.
LearnTube makes mastering these skills highly interactive. Our platform pairs top curated YouTube videos with an AI tutor that tests your knowledge. You'll take a quick quiz after every single lesson to reinforce what you just watched. The learning experience is entirely free, and you can choose to add a paid certificate once you finish. With over 60,000 learners and 900 hiring partners on the platform, you are building skills that the Indian job market actively demands.
Jobs you can target after learning Kotlin
Kotlin is a gateway skill for some of the fastest-growing roles in tech.
Designs and builds mobile applications for Android devices using modern frameworks.
Writes scalable code for backend systems and application logic.
Creates user-friendly mobile interfaces and integrates them with backend services.
Typical entry-level salary ranges in India as of August 2026. Actual compensation varies by city, company and experience.
Earn a Kotlin certificate employers recognise
Finish the course and claim a certificate you can share anywhere.
- Learn 100% free: every lesson, quiz and the AI tutor cost nothing
- Claim your certificate when you complete the course (an optional paid add-on)
- Recognised by 900+ hiring partners across India
- One click to share on LinkedIn and add to your resume
Why learners choose LearnTube
Real reviews from Google. You learn free, you get assessed free, and you pay only if you want the certificate.
Though I have 11 years of experience as an HRBP, the course helped me refresh my knowledge and gave me insights into new trends in the market. The modules were clear and easy to understand, and the quizzes were well designed. I have added the certificate to my LinkedIn profile.
I had a lot of doubts while learning, but the AI chatbot answered them in detail with simple summaries. The videos on the platform saved me a lot of time as I didn't have to search YouTube and watch random content.
Just earned my certificate in HR Management from LearnTube.ai! The platform is user-friendly and the assessment was a great way to validate my knowledge. Feeling proud of this accomplishment!
I enrolled in a LearnTube personalized course to get into a Data Analytics role. It helped me learn SQL in depth and gave me hands-on experience with Power BI. I attached the LearnTube certificate to my CV, it added credibility to my profile, and I'm currently in the interview process.
The interface is user-friendly and intuitive, making it easy to navigate the course. I encountered no errors during my time using the platform, which was a refreshing change from other online learning platforms.
Just cleared the Business Analyst assessment and got certified! Loved how the course simplifies big concepts like data-driven decision making into short, practical lessons. The automated quizzes kept me on track the whole time. Perfect boost for my resume!
The certificate gave me a real edge during my B.Tech. By the time I graduated, I had skills that set me apart from my peers, and the certification opened up more job opportunities. It gave me the confidence to stand out during interviews.
I manage many software projects as a General Manager and was looking for a good certification program to stay competitive. After researching many programs, I chose LearnTube and it was much better than I expected. The material is well-organized and practical, and what I liked most is the lifetime access.
Frequently asked questions
Everything learners ask before starting this Kotlin course.
Do I need prior coding experience to learn Kotlin?
No, you don't need any prior experience. This Kotlin tutorial for beginners starts with basic concepts like variables and environment setup. Anyone can pick up the fundamentals and progress to advanced object-oriented programming.
What job roles can I get after a Kotlin course?
You can pursue roles like Android Developer, Software Engineer, or Mobile App Developer. In India, entry-level salaries for these positions typically range from ₹3 to ₹7 LPA depending on the company and your practical project portfolio.
Can I study this Kotlin programming tutorial on my phone?
Yes, LearnTube is fully optimized for mobile devices. You can watch the 94 video lessons and interact with the AI tutor quizzes directly from your smartphone, allowing you to study easily while commuting or traveling.
How long does it take to complete this Kotlin training?
The course contains about 13 hours of video content across 13 modules. Because it is completely self-paced, most learners finish the material and hands-on projects within two to three weeks by studying an hour a day.
Is there a Kotlin course with certificate available here?
Yes. All the learning materials, videos, and AI quizzes are completely free. Once you finish the modules, you have the option to purchase a verified certificate to add to your resume or LinkedIn profile.
Will I build real projects in this learn Kotlin online course?
Yes, you will complete four hands-on projects. These include building a mobile app, developing a web application for e-commerce, and implementing Kotlin in a big data analytics platform to solidify your practical coding skills.
Does this course cover advanced Kotlin concepts?
The curriculum covers essential advanced foundations like Kotlin - Exception Handling and Null Safety, Kotlin - Constructor and Inheritance, and Kotlin - Classes and Object. These prepare you perfectly for tackling advanced frameworks later.
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